Year	constant 2021 US$
1960	71250000
1961	96339996.3378906
1962	37189998.626709
1963	21739999.7711182
1964	26639999.3896484
1965	40340000.1525879
1966	28600000.3814697
1967	27989999.7711182
1968	34810001.373291
1969	24190000.5340576
1970	39319999.6948242
1971	33439998.626709
1972	37790000.9155273
1973	38060001.373291
1974	57110000.6103516
1975	161389999.38964802
1976	205580001.831055
1977	228210006.71386698
1978	235020004.272461
1979	214669998.168945
1980	245570007.32421902
1981	250050003.05175802
1982	292089996.33789104
1983	301359985.35156304
1984	303750000
1985	355049987.792969
1986	387839996.33789104
1987	414570007.324219
1988	245029998.779297
1989	345559997.558594
1990	261760009.765625
1991	280440002.441406
1992	161429992.67578098
1993	199639999.38964802
1994	1034020019.53125
1995	1004789978.02734
1996	475570007.324219
1997	430929992.675781
1998	542729980.46875
1999	338160003.66210896
2000	286019989.013672
2001	272049987.792969
2002	234910003.66210902
2003	264709991.455078
2004	368880004.88281304
2005	473209991.455078
2006	652340026.855469
2007	668630004.882813
2008	872380004.882813
2009	1041540039.0625
2010	3184620117.1875
2011	1598530029.29688
2012	1359010009.76563
2013	1219880004.88281
2014	1131579956.05469
2015	1193910034.17969
2016	1221079956.05469
2017	1094989990.23438
2018	1093849975.58594
2019	755799987.792969
2020	942239990.234375
2021	951479980.46875
2022	895489990.234375